Product Features:<br />Built-in shunt・ no additional external shunt.<br />Product Parameters:<br />1. Type: Digital voltage measuring meter<br />2. Type: PZEM-031/051<br />3. Test current: 20A<br />4. Measuring range: 6.5-100 (V)<br />5. Input voltage 6.5-100 (V)<br />6. Output voltage: 6.5-100 (V)<br />7. Ambient temperature: -10 ~ +65 ( )<br />8. Voltage measurement error 1%<br />9.A PZEM-031 20A <br />  B PZEM-051 50A With the shunt<br />  C PZEM-051 100A <br />  D PZEM-051 100A With the shunt